Corner open type zipper pack

ABSTRACT

The present invention relates to a corner open type zipper pack ( 1 ) capable of achieving an automatic fabrication in which an opening part formed of a synthetic resin zipper ( 2 ) is formed at a corner of a pack formed of a synthetic resin seat source material. The synthetic resin zipper is thermally adhered only at one side of each of the female zipper and the male zipper with a thermal adhering wing, wherein the female and male zippers are arranged in an inner direction of the zipper pack, and the thermal adhering wing is arranged in a direction of the corner portion of the opening part for thereby achieving a thermal adhering structure, so that an automatic fabrication is obtained.

TECHNICAL FIELD

The present invention relates to a corner open type zipper pack capable of achieving an automatic fabrication in which an opening part formed of a synthetic resin zipper is formed at a corner of a pack formed of a synthetic resin seat source material, and in particular to a structure in which a zipper formed at an open part of the Korean patent No. 385472 is automatically thermally adhered in an automatic fabrication line of a pack for thereby fabricating a zipper pack based on a mass production in which a sealing part is sealed again after a part of a stuff is taken out from a pack.

BACKGROUND ART

The above Korean patent No. 385472 is invented by the inventor of the present invention. In the above patent, there is provided a synthetic resin zipper formed of male and female parts in an opening part formed at one corner portion of a pack.

In the above pack of the patent, since a synthetic resin zipper thermally adhered to an opening part of the corner part is slanted, in a conventional fabrication line in which a zipper pack fabricated using a synthetic resin seat source material is automatically fabricated, it is impossible to achieve a mass production.

For example, as shown in FIG. 6, in the case of a conventional automatic fabrication line of a zipper pack, when a synthetic resin zipper 200 formed of two thermal adhering wings 211, 212, 221 and 222 in female and male zippers 210 and 220 is thermally adhered at an opening part 101 of a conventional zipper pack 100 as shown in FIG. 5 in a straight line shape, an automatic fabrication is possible. However, in the structure that the synthetic resin zipper 200 is thermally adhered at a certain slanted angle at a corner of one side of the opening part 101, an automatic fabrication is impossible. In addition, a defect ratio is increased.

Namely, since the synthetic resin zipper 200 is inserted into the interior of the opening part 101 of the zipper pack 100 and is thermally adhered in a state that the female and male zippers 210 and 220 are engaged, a thermal adhering prevention member should be installed between the thermal adhering wings formed at both sides of the female and male zippers 210 and 220 for preventing a thermal adhering phenomenon between the thermal adhering wings. When the synthetic resin zipper 200 is thermally adhered in a straight line shape in the same direction as the direction that the seat source material of the zipper pack is arranged, the thermal adhering prevention member may be fixedly installed between the seat source materials of the upper and lower sides. In the case that the synthetic resin zipper 200 is thermally adhered at the corner portion of one side of the opening part 101 at a slanted angle, it is impossible to install the thermal adhering prevention member for the reasons that the thermal adhering prevention member positioned in the moving direction of the synthetic resin zipper thermally adhered to the seat source material interferes with the movement of the synthetic resin zipper.

In addition, the thermal adhering prevention member may be inserted into the interior of the opening part together with the synthetic resin zipper and then may be escaped therefrom. However, the above construction may not be currently achieved by the current technology.

DISCLOSURE OF INVENTION

Accordingly, it is an object of the present invention to provide a corner open type zipper pack capable of achieving an automatic fabrication that overcomes the problems encountered in the conventional art.

It is another object of the present invention to provide a corner open type zipper pack capable of achieving a corner open type zipper pack by a mass production using a conventional automatic fabrication line in which a synthetic resin zipper is thermally adhered to an opened part of the zipper pack in a straight line shape.

To achieve the above objects, in a zipper pack in which upper, lower, left and right edge portions of the surface and back surface formed of a synthetic resin seat source material are sealed by a thermal adhering method, and a synthetic resin zipper formed of female and male zippers is thermally adhered at a slanted angle to an inner side of an opening part of the corner portion of one side of upper end, there is provided an improved corner open type zipper pack comprising a synthetic resin zipper being thermally adhered only at one side of each of the female zipper and the male zipper with a thermal adhering wing, wherein the female and male zippers are arranged in an inner direction of the zipper pack, and the thermal adhering wing is arranged in a direction of the corner portion of the opening part for thereby achieving a thermal adhering structure, so that an automatic fabrication is obtained.

BRIEF DESCRIPTION OF DRAWINGS

The present invention will become better understood with reference to the accompanying drawings which are given only by way of illustration and thus are not limitative of the present invention, wherein;

FIG. 1 is a front view illustrating a zipper pack for describing the present invention;

FIG. 2 is a cross sectional view taken along the line A-A of FIG. 1;

FIG. 3 is a perspective view illustrating a synthetic resin zipper thermally conjugated to a corner of a zipper pack according to the present invention;

FIG. 4 is a view illustrating a fabrication process for an automatic fabrication of a zipper pack according to the present invention;

FIG. 5 is a front view illustrating a conventional zipper pack; and

FIG. 6 is an enlarged cross sectional view illustrating a separated state of a synthetic resin used for a conventional zipper pack.

BEST MODE FOR CARRYING OUT THE INVENTION

The preferred embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a front view illustrating a zipper pack for describing the present invention, FIG. 2 is a cross sectional view taken along the line A-A of FIG. 1, FIG. 3 is a perspective view illustrating a synthetic resin zipper thermally conjugated to a corner of a zipper pack according to the present invention, and FIG. 4 is a view illustrating a fabrication process for an automatic fabrication of a zipper pack according to the present invention.

As shown therein, reference numeral 1 represents a zipper pack. The zipper pack 1 is formed of a synthetic resin seat source material and is constructed in such a manner that the surface 11 and the back surface 12 are overlapped each other, and the upper, lower, left and right corners are thermally adhered with a certain width. An opening part 13 is formed in an inner side3 of the corner portion of one upper side in such a manner that the synthetic resin zipper 2 is thermally adhered.

The synthetic resin zipper 2 is formed in such a manner that the female zipper 21 having engaging grooves and the male zipper 22 having engaging protrusions are detachably engaged with each other.

The synthetic resin zipper is continuously thermally adhered at the opening part 13 of the zipper pack 1 automatically.

In the present invention, the thermal adhering wings 23 and 24 are formed at one side of each of the female and male zippers 21 and 22 forming the synthetic resin zipper 2. When thermally adhering the female and male zippers 21 and 22 at inner both surfaces of the opening part 13, the thermal adhering wings 23 and 24 are arranged in the outer direction of the zipper pack 1, namely, the direction of the corner of the opening part 13. In a state that the female and male zippers 21 and 22 are arranged in the direction of the inner side of the zipper pack, the thermal adhering wings 23 and 24 are thermally adhered to both inner surfaces of the opening part 13, so that the zipper pack 1 of the present invention is automatically fabricated based on the mass production using the conventional automatic zipper fabrication line.

Namely, FIG. 4 is a view illustrating a step-by-step fabrication line for fabricating the zipper pack 1 according to the present invention. As shown therein, the fabrication line is implemented based on the steps of the source material supplying step -> the zipper insertion and thermal adhering step -> the edge portion thermal adhering step and upper and lower portion cutting step -> the completion step wherein the above steps are started from the source material inputting step. In the zipper insertion step and the thermal adhering step, the synthetic resin zipper 2 is intermittently supplied by a certain length in the diagonal direction toward the portion between the surface 11 of the upper side and the back surface 12 of the lower side. The synthetic resin zipper 2 is inserted in a state that the female and male zippers 21 and 22 are engaged with each other and in a state that the thermal adhering wings 23 and 24 are positioned at the upper side in the drawings.

In addition, the thermal adhering prevention member 3 is fixedly installed at the portion in which the synthetic resin zipper 2 is inserted in the diagonal direction wherein the thermal adhering prevention member 3 prevents the thermal adhering wings 23 and 24 from being thermally adhered with each other when the synthetic resin zipper 2 is inserted. A thermal adhering apparatus is installed in the upper and lower sides of the portion in which the synthetic resin zipper 2 is inserted, namely, in the upper side of the surface 11 and the lower side of the back surface 12 for thermally adhering the thermal adhering wings 23 and 24 to the surface 11 and the back surface 12, respectively. When the thermal adhering wings 23 and 24 of the synthetic resin zipper 2 are thermally adhered to the surface 11 and the back surface 12 by the thermal adhering apparatus, the synthetic resin zipper 2 is cut by a cutting apparatus.

In the edge portion thermal adhering step and upper and lower portion cutting step, the edge portions of the source material thermally adhered with the synthetic resin zipper 2 are thermally adhered based on the standard of the zipper pack 1, and the upper and lower portions are cut. In the completion step, the source material is cut based on the standard of the zipper pack I for thereby fabricating the zipper pack 1.

In the present invention, the thermal adhering wings 23 and 24 are formed at only one side of each of the female and male zippers 21 and 22 that form the synthetic resin zipper 2 inserted into the open part 13 of the zipper pack 1 in the diagonal direction and thermally adhered therein. The female and male zippers 21 and 22 are positioned in the direction of the inner side of the zipper pack 1, and the thermal adhering wings 23 and 24 are positioned in the direction of the outer side of the zipper pack 1, so that it is possible to automatically fabricate the zipper pack 1 to which the synthetic resin zipper 2 is thermally adhered.

As shown in FIG. 4, the thermal adhering prevention member 3 positioned between the thermal adhering wings 23 and 24 is positioned in the rear side of the female and male zippers 21 and 22 with respect to the moving direction of the source material, so that the source material can be transferred in a state that the thermal adhering wings 23 and 24 of the synthetic resin zipper 2 are thermally adhered for thereby achieving an automatic fabrication of the zipper pack 1.

INDUSTRIAL APPLICABILITY

As described above, the synthetic resin zipper is thermally adhered at an inner side of the opening part formed at the corner portion of one side of the zipper pack at a slanted angle. The female and male zippers of the synthetic resin zipper are arranged in the inner direction of the zipper pack. The thermal adhering wings formed only at one side of each of the female and male zippers are arranged in the outer direction of the zipper pack. In the above state, the thermal adhering wings are thermally adhered for thereby achieving an automatic fabrication of the zipper pack. The productivity of the zipper pack is enhanced. The fabrication cost is decreased.

In addition, when the zipper pack according to the present invention is adapted to packing certain stuff such as sugar, taste salt, seasoning, coffee, wheat flour, mixture of grain powders, powder of pepper, rice, barley, powder or liquid cleaning materials, it is possible to re-seal the opening part after a certain amount of the stuff is discharged, so that a stable storing of the stuff is achieved.

As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described examples are not limited by any of the details of the foregoing description, unless otherwise specified, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims. 

1. A zipper pack in which the upper, lower, left and right edge portions of the surface and back surface formed of a synthetic resin seat source material are sealed by a thermal adhering method, and a synthetic resin zipper formed of female and male zippers is thermally adhered at a slanted angle to an inner side of an opening part of the corner portion of one side of upper end, an improved corner open type zipper pack comprising: a synthetic resin zipper being thermally adhered only at one side of each of the female zipper and the male zipper with a thermal adhering wing, wherein said female and male zippers are arranged in an inner direction of the zipper pack, and said thermal adhering wing is arranged in a direction of the corner portion of the opening part for thereby achieving a thermal adhering structure, so that an automatic fabrication is obtained. 